最能导致受伤的一个原因是跳下飞速移动中的跑步机。
One of the biggest causes of injuries on treadmills is jumping off a fast-moving treadmill.
十几个沙丘的距离之外，飞速移动的白柱像喝多了酒的沙漠魔鬼一样，横冲直撞。
In the distance half a dozen sand-spouts, swiftly-moving white pillars, looking like desert genii with too much "tanglefoot" aboard, were careering about in every direction.
纸板管被从40 000英尺高空投下，可跟踪200英里，它嗖嗖地飞速移动，让我想起了百货商店里老旧气压管道的声音。
The pipe, which can be dropped from 40, 000 feet and tracked for 200 miles, makes a whoosh on its descent, reminding me of the sound of those old pneumatic tubes in department stores.
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